Yogis and people like me, who have faced immense suffering, are not even slightly afraid of the wild's mad mischief or disturbances.

This couplet tells us that people who have faced many difficulties and sufferings, just like ascetics or the poet himself, develop a profound inner strength. When such individuals find themselves in challenging or chaotic situations, like a wild forest filled with disturbances, they remain completely unafraid. Their past experiences have made them resilient, and they've learned not to be intimidated by any turmoil or madness they encounter. It's a beautiful message about how enduring hardships can build incredible courage and fearlessness within us.